Hair-permanent-waving heater



Sept. 2, 1930. H. BONAT 1,774,586

HAIR PERMANENT WAVING HEATER Filed July 26, 1928 Patented Sept. 2, 1930 HARRY BONAT, OF NEW YORK, N. Y.

HAIR-PERMANENT-WAVING HEATER Application filed July 26,

This invention relates to heaters and more particularly to heaters for use in' connection with hair permanent waving.

An object of the invention is to provide a new, simple and efiicient heater for use in connection with hair permanent waving.

Heretofore in the art of hair permanent Waving use has been made of heaters composed of sections hinged together in such a manner and of such shape as to form a clamp.

A heater of such clamp-like arrangement when in use fitted very closely against the roll of hair to be treated and applied pressure thereto. The application of heat under pressure to the hair often resulted in damage thereto and furthermore due to the construction of the clamp-like heater a large part of the vapor resulting from the heating processwas freely dissipated. Due to this rapid dissipation of vapor the heat would necessarily have to be applied for a considerable length of time, often times resulting in damage to the hair and moreover affording greater discomfort to the patient.

Accordingly the present invention overcomes the unsatisfactory features of the devices in use heretofore by providing a unitary structure of a size and shape to fit closely around the roll of hair to be treated without actually applying any pressure thereto. Due to the unitary structure the vapors are held in close contact with the roll of hair under treatment withthe result that the time necessary for treatment is considerably reduced and the operation is made more efficient.

Moreover the use of a unitarystructure which is affixed to the spool around which the hair under treatment is rolled, by means of heat insulating clamps lessens the liability of the scalp of the patient being burned due to heat conducting materials. The improved structure is easier to handle than existing devices and produces better results. The clamps themselves serve to close the end of the unitary heating structure, thereby preventing the undesirable escape of the necessary vapor, while vents are provided for the escape of surplus vapor.

The objects and features of the invention 'to the hair wrapped around the spindle 12 Such an arrangement comprises clamping 1928. Serial No. 295,430.

will be readily understood by reference to the following detailed description accompanied by the illustrative drawings in which Figure 1 is a perspective view of the invention in use with the heater in position surrounding a roll of hair to be treated;

Figure 2 is a plan view of the heater of the invention;

Figure 3 is an end view of the devices illustrated in Fig. 2;

gigure 4 is a side view of the same device an Figure 5 is a section taken on the lines 55 of Fig. 4.

Referring now to the drawings, 10 indicates a pad for hair permanent waving which pad may be of any desired type and character. Resting upon the pad and partly supported by a U-shaped member 11 is a spool or spindle 12 a portion of which is shown in Fig. 1. As is clearly understood by those skilled in the art, the hair to be treated is customarily wound around such a spindle or spool. Since it is necessary to apply heat the present invention provides a heater composed of a unitary structure 1 made up of inverted substantially U-shaped members 13 and 14, the member 14 having its lower edge folded over and clamped to the member 13 as indicated at 15. By having the members 13 and 14 spaced apart as shown clearly in Fig. 5 provision is made for the insertion between these two members of an electrical heater element 16 of any desired character. As shown in Fig. 1 the ends of member 14 are folded around and clamped to the member 13 in the same manner as the lower edge? thereof, such clamping being illustrated at 1 In order that the heater may be held in position surrounding the roll of hair to be treated, provision is made whereby the same may be detachably secured to the spindle 12.

members 18 and 19 aflixed to the respective ends of the unit by being secured to upstanding ears 20 by means of screws 21. Springs 22 are wrapped around the screws 21 1D such a manner as to apply'tension to normally hold the clamping members 18 and 19 in the position illustrated in Figs. 1, 3 and 5, that is, in position to permit their jaws 23 to extend around and under the spindle 12.

For permitting the removal of the unit from operative position relative to the spindle 12 handles 24 and 25 connect the respective members 18 and 19 as illustrated in the drawings. By pressing the handles 24 and 25 together the jaws 23 are extended permitting their removal from or engagement around the spindle 12. Since it is desirable that as little heat as possible be communicated to the scalp of the patient the entire arrangement for holding the heater in operative position, that is, the clamps 18 and 19 and the handles 24 and 25, is made ofsome good heat insulating maternal preferably balrelite. In addition to the heat insulating qualities of such material a further advantage derived therefrom is the fact that such material weighs very little, thereby reducing the total weight of the entire assembly. 111 furtherance of this feature of reducing the weight of the unit it is preferable that the members 13 and 1 1 which form the casing for the electrical heating element should be made of some light material which also is a good conductor of heat. It has been found in practice that aluminum serves this purpose very well. The usual electrical conductors 26 for supplying energy to the element 16 are introduced into the space between the members 13 and 1% through an insulating block 27 resting upon and affixed to the top of the member 18 at approximately its mid-point. lnlets 28 are provided in the member 27 communicating with openings 29 in the top of member 13, thereby afiording access to element 16.

It will be evident from the foregoing that due to the unitary structure of the heater that the major portion of the vapor, resulting from the application or" heat to liquid with which the roll of hair is impregnated, will be confined closely within the confines of the heater. The clamps by substantially closing the ends of the unitary heating structure aid in confining the vapor in close contact with the hair. It is necessary that some of the vapor be permitted to escape. For this reason a pair of vents 30 are provided in the heater, such vents extending through the entire structure.

The improved structure is very easy to handle better results are obtained thererrgm and it is inexpensive to manufacture.

1 claim:

A. device of the character described comprising a unitary heating member substantially ll-shaped in cross section and jaw clamping members at each end of said heat- (iing member for contact with a hair engaging evice.

prising a unitary hollow shell substantially prising a unitary heating member substantially U-shaped in cross section, and clamping members at each end of said heating members, said clamping members serving to close portion of each end of said heating meml. A. device of the character described comprising a unitary hollow shell substantially U-shaped in cross section of relatively light, heat conducting metal, a heating element therewithin, and clamping members of heat-resisting material at each end of said shell, said clamping members serving to close a portion of each end of said shell.

5. A device of the character described comprising a unitary'heating member substantially U-shaped in cross section, clamping members at each end of said heating member and handles connecting the said clamping members in pairs.

6. A device of the character described comprising a unitary heating member substantially U-shaped in cross section, clamping members at each end of said heating member and handles connecting the said clamping members in pairs, said clamping mem bers and said handles being constructed of heat-resisting material.

in testimony whereof, I have signed my name to this specification.

HARRY BONAT.

2. A device of the character described eom- 

